﻿// -----------------------------------------
// SoundScribe (TM) and related software.
// 
// Copyright (C) 2007-2011 Vannatech
// http://www.vannatech.com
// All rights reserved.
// 
// This source code is subject to the MIT License.
// http://www.opensource.org/licenses/mit-license.php
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// -----------------------------------------

using System;
using CoreAudioTests.Common;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Vannatech.CoreAudio.Interfaces;
using Vannatech.CoreAudio.Constants;
using System.Runtime.InteropServices;

namespace CoreAudioTests.DeviceTopologyApi
{
	/// <summary>
	/// Tests all methods of the IPartsList interface.
	/// </summary>
	[TestClass]
	public class IPartsListTest
	{
		/// <summary>
		/// Tests that the count of a parts list can be received, for each available parts list in the system.
		/// </summary>
		[TestMethod]
		public void IPartsList_GetCount()
		{
			var result = 0;
			var tested = false;
			var allParts = TestUtilities.CreateIPartCollection();

			try
			{
				// Try using incoming parts.
				foreach (var part in allParts)
				{
					IPartsList partsList;
					var enumResult = part.EnumPartsIncoming(out partsList);

					if ((uint)enumResult == TestUtilities.HRESULTS.E_NOTFOUND)
						continue;

					var count = UInt32.MaxValue;
					result = partsList.GetCount(out count);
					Marshal.FinalReleaseComObject(partsList);

					AssertCoreAudio.IsHResultOk(result);
					Assert.AreNotEqual(UInt32.MaxValue, count, "The count was not received.");
					tested = true;
				}

				// Try using outgoing parts.
				foreach (var part in allParts)
				{
					IPartsList partsList;
					var enumResult = part.EnumPartsOutgoing(out partsList);

					if ((uint)enumResult == TestUtilities.HRESULTS.E_NOTFOUND)
						continue;

					var count = UInt32.MaxValue;
					result = partsList.GetCount(out count);
					Marshal.FinalReleaseComObject(partsList);

					AssertCoreAudio.IsHResultOk(result);
					Assert.AreNotEqual(UInt32.MaxValue, count, "The count was not received.");
					tested = true;
				}
			}
			finally
			{
				foreach (var part in allParts)
					Marshal.FinalReleaseComObject(part);
			}

			if (!tested) Assert.Inconclusive("The test cannot be run properly. No parts lists were found.");
		}

		/// <summary>
		/// Tests that specific parts in a parts list can be received, for each available parts list in the system.
		/// </summary>
		[TestMethod]
		public void IPartsList_GetPart()
		{
			var result = 0;
			var tested = false;
			var allParts = TestUtilities.CreateIPartCollection();

			try
			{
				// Try using incoming parts.
				foreach (var part in allParts)
				{
					IPartsList partsList;
					var enumResult = part.EnumPartsIncoming(out partsList);

					if ((uint)enumResult == TestUtilities.HRESULTS.E_NOTFOUND)
						continue;

					UInt32 count;
					partsList.GetCount(out count);

					try
					{
						for (uint i = 0; i < count; i++)
						{
							IPart testPart;
							result = partsList.GetPart(i, out testPart);
							Marshal.FinalReleaseComObject(testPart);

							AssertCoreAudio.IsHResultOk(result);
							tested = true;
						}
					}
					finally
					{
						Marshal.FinalReleaseComObject(partsList);
					}
				}

				// Try using outgoing parts.
				foreach (var part in allParts)
				{
					IPartsList partsList;
					var enumResult = part.EnumPartsOutgoing(out partsList);

					if ((uint)enumResult == TestUtilities.HRESULTS.E_NOTFOUND)
						continue;

					UInt32 count;
					partsList.GetCount(out count);

					try
					{
						for (uint i = 0; i < count; i++)
						{
							IPart testPart;
							result = partsList.GetPart(i, out testPart);
							Marshal.FinalReleaseComObject(testPart);

							AssertCoreAudio.IsHResultOk(result);
							tested = true;
						}
					}
					finally
					{
						Marshal.FinalReleaseComObject(partsList);
					}
				}
			}
			finally
			{
				foreach (var part in allParts)
					Marshal.FinalReleaseComObject(part);
			}

			if (!tested) Assert.Inconclusive("The test cannot be run properly. No parts lists were found.");
		}
	}
}